Intracranial 4D MRA: Evaluation of Additional View Sharing for Improved Temporal and Isotropic Spatial Resolution at 3.0 T

Introduction High spatial resolution 3D CEMRA is the first-line diagnostic tool in the assessment of supraaortic steno-occlusive disease in many centers. However, for adequate diagnosis and treatment of cerebral arteriovenous malformations (cAVMs), detailled characterization of both angioarchitecture and hemodynamics is required. In previous studies, the combination of CENTRA, Keyhole, parallel imaging (SENSE) and partial Fourier allowed for the acquisition of whole head 4D CEMRA at a spatial resolution of (1.1 x 1.4 x 1.1) mm3 and a temporal resolution of 608 ms/dynamic scan. The addition of view sharing to this acquisition scheme holds promise to further accelerate and/or increase spatial resolution of 4D CEMRA.